(GIVING BRAINLIEST IF CORRECT) The territory of Texas was annexed by the United States because:
A: Texas was added to the United States as a result of the Mexican-American War.
B: Spain forced Mexico to allow annexation to happen after years of conflict.
C: Texas was annexed at the same time as California making the increase in sizable for the United States.
D: in 1845, the Republic of Texas voluntarily asked to be admitted to the United States.
